Window ventilator



y 1,630,594 May a1, 1927. V. M. ALLEN v WINDGW VENTILATOR Filed Aug. 14.1920 2 Sheets-Sheet `1 Muy 3L. Z

V. M. LLEN WINDOW VENTILATOR Filed Augr 14. 1920 2 Sheets-Sheet 2 m 6 alo Z il il Patented May 31, 1927.

UNITED STATES vieron ivi. ALLEN, on WAVERLY, New YoRir.

WINDOW vENrILA'roR.

-Application led August 14, 1920. Serial No. 403,568.

This invention relates to window vent-ilators and has for its object theprovision of a device which may be set in a window frame below either'sash and easily adjusted to admit a desired volume of air or to excludeall outside air and prevent the entrance of rain, snow, or otherelements.

Another object of the invention is to provide means whereby when theventilator is opened, guards will be provided to prevent side drafts andto screen the occupantsV of the room from observation 4from the outside.

Other objects of the invention are to proride means to prevent spreadingoit the panels and the frame in which they `are mounted; to house theworking parts within the Ytraine, so that they will be protected againstbreakage, and to provide an adjusting mechanism which will be simple anddirect acting.

Other incidental objects will appear in the course oli the followingdescription.

A preferred embodiment of the invention is illustrated in theaccompanying drawings in whichi j Fig. l is an elevation of my improvedwindow ventilator `viewed from the inside and in closed position;

Fig. 2 isa plan `view of the same;

Fig. is an enlarged verticalv section with the panels in partly openposition;

Fig. l is an enlarged end elevation' of the closed ventilator;

fiig. 5 is a detail section ot a part of the ailjusting mechanism; Fig.6 is an enlarged detail section showing the manner of connecting a`panel 'to the :nljusting shaft;

Fig. 7 a detail of the stay rod;

Fig. 8 is a section on the line SMS of Fig. l; and

Fig. 9 is an enlarged transverse section of the upper portion of theventilator showing the closed relation ol the panels.

The ventilator comprises a frame l, which isv adapted toit in a windowbetween the sash stops or beads thereon; it may be placed beljoxyv theraised lower' sash with the sash resting thereon or it may beplaced inthe outer grooves below the upper sash, 'in which event thelower sashmay be raised or lowered at will without requiring any shifting oi` theventilator. One end strip" ol the traine may be adjustablelongitudinally oi"` the frame so as to adapt the device to windows ofdifferent widths and this strip may be secured in a set position by athumb screw 2. The frame may be provided on its top side or edge with ametal cover 3, adjustable transversely and secured in adjusted positionby set screws 4 passing through transverse slots 5, the frame being thusadapted to 'lit under sashe's of various widths, and to allow of itsextension in towards the room, to come under the lower sash, when theventilator is set in between the stops that hold the upper sash. This toprevent the storm from coming` in between the ventilator top and thebottom of the lower sash when raised, the flange coming up on the insideof' the bottom of the lower sash the same as when the ventilator is setdirectly under the lower sash. The cover isV provided along its inneredge with an upstanding flange 6, which is adapted to engage against thesashand prevent the entrance ojl" water underthe same. The frame isrectangular to rest securely in the window frame and upon the sill andpresents a central opening in which the Ventilating panels 8 aremounted.

The panels 8 are oblong strips of transparent or translucent glass orother material 'carried in inetal holders 9, which receive the ends ofthe strips and extend across their lower edges so as to firmly supportthe same. The holders project above the upper edges of the panels, as atl0, to form fulcrum lugs or ears through which pivot or fulcruni screwsor pins l1, are inserted into the frame to secure the panels in place.The space between the holders over the upper edge ott' a panel is opento facilitate the removal of a broken panel and it will be readilyunderstood that the heads of the pivot screws serve as retainers toprevent the panels being accidentally released from theholders. Tofurther facilitate thewithdrawal of a broken panel and the insertion or'a new paneh'the wooden guard strips l2 on the inner side of the frameare secured in position by screws so that they may be easily removed andreplaced. These strips, when in position, prevent rain or other weatherelements beating around the ends of the panels into the room. Theholders for the intermediate `panels are cut away "on their outer facesat their upper ends, as shown at 13, and on their inner faces at theirlowerends, as shown at `la, so that the panels lmay be in intimatecontact when closed as 'shown in Fig. 9, and

form a wind and dust-proof joint. As will be readily understood, theholder for the bottom panel is cut away on only its front face while theholder for the top panel is cut away on only its rear tace. y

ln the lower edge ot the top bar of the it aine l forni a groove orlongitudinal chamber l5 having an upturned rib or flange 16 along theedge of its front wall and on the upper edge ot' the topV panel Iprovide an overhanging hook-like lip or flange 17 which extends` intothe recess l5, and adapted to engage upon the rib 1G so that the weatherelements cannot work over the top of the panel and into the room, aswill be readily understood on reference to Fig. 9. The overhanging lipis carried on a base plate 18, which is litted snugly upon the top edgeof the upper panel., as shown clearly in Figs. 3 and 9, and the holders9 for said panel are expanded at their upper ends, as at 19, toaccommodate the base plate and lip and hold them snugly on the panel.

One of the panels carried by a pivot rod Q5 instead ot'jthe screwsll,said rod extending through the upper extremities oi the holders andbeing journaled in `the side members of the traine. Rivets or similarastenings 2l are inserted through this rod 25 and the inner webs oi theholders to msecure the rod to the holders and these holders areenlarged, as at 22, so as to be sutliciently reenforced to sustain thestrain of turning the panels. A wormpinion 24 is provided on one end ofthe rod 25 and meshes with a worm 23 on a shaft 20 whichl is housedwithin the end of side bar of the :trame and equipped at its free endwith a milled knob or other torni of handle 26, wheieby a turningmovement may be imparted to rod 25 to adjust the panels. It will bereadily understood that the turning movement. of the pivot rod or shaft25 shifts the angular positions `of the panels so as to open theventilator to a greater or less degree.

'lo eii'ect simultaneous movement of all the panels, connecting bars 2Gare provided at the ends oi' the panels `and the panels are pivoted tothis connecting bar by pins or studs indicated by dotted lines at 27,thelpins or studs being spaced apart the same distance as thepivotal-connections of the panelswiththe frame so that the swing- .ingmovement of one panel will be transmitted through the connecting bar toall the panels.` The panels will be held in the set position by the wellknown braking action o't' the worm gearinff. The connecting bars 26 arerelatively thin and may be ot sheet material but they should obviouslybe long` enough to connect all the panels; they are preferably of such`width that their inner edges will rest against the facing guard stripsl2 and their outer `edges will lie flush with the outer side oi' theframe when the ventilator is closed. The connecting bars are providednear their ends with arcuate slots 2S which play over pins 29 on guardplates 30 of similar dimensions as the con necting bars and arrangedbetween-said bars and the sides of the :fi-aine. The guard plates 30 areprovided near their ends with arcuate slots 3l playing on studs or pins32 on the end strips of the lraine.

The holders 9 for the lowerlnost panel are extended somewhat below thelower edge ol the panel and a tic rod 33 is fitted at its ends insaidhohlcrs and is scoured to the same by rivets or similar devices 3st,:is shown. Spreading ot the holders and consequent release ot' the panelis prevented by the provision ot the tie rod and, as the pivots 2T areheaded studs, the connecting bars will be prevented from falling away'from the panels.

From the foregoing description, taken in connection with theaccompanying drawings, the operation and advantages of the device willbe readily understood and appreciated. When set in a window with thepanels set as in Fie. 3, passages through which fresh air may iiow intoa rooin are provided and it will be noted that the air currents mustflow upward so that dust will drop to 'the outside of the window and theair passing into the room will be substantially 'tree ol impurities andair currents moving up wardly will not malte a draught to blow articlesabout the room or cause colds. To set the panels at any desiredinclination, the shaft 2O is turned by manipulation of the handle 26',and the iiulcrum rod 25, will be rotated or rocked through the gearingshown and described. As this rod is connected rigidly with the adjacentpanel holders, the panel, will, of course, swing as the rod rocksand theconnecting bars 26 will transmit the motion to the other panels `su thatall the panels will assume 'the saine in clination. As the panels swingoutwardly, the connecting bars Q6 also, ol course, swing outwardly andride upon the studs or pins 29 until the ends ot the slots 28 iinpinffoagainst the saine whereupon a pull will e exerted upon said studs orpins to draw the guard plates 30 outward so that the bars and platestogether form guards or shields to preventlateral air currents enteringthe ventilator andto screen the occupants of the room from the view ofpersons standing at the side of the window. It the panels be swunginwardly the connecting bars and guard plates will telescope into thespaces between the ends ot the panels andthe adjacent end strips of theframe with their outer edges flush with the outside of the :trame so topresent a neat appearance. Thus the side guards ext-end and close onlyso far as the panels are opened or closed. The device is simple inconstruction and till lUl

etlieient in use, serving the purposes of an awning, a window and aventilator.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent of the United States isl. In a windowventilator, the combination of a frame having a longitudinal recess inthe under side of its top bar and provided with an upturned longitudinalrib on the front wall of said recess, a plurality of panels pivotallymounted in the frame, t-he pivot oi one of the panels being elongated, aworm wheel fixed on said elongated pivot, a shaft disposed transverselyto the worin uf'heel, means for setting said shalt, a worin on saidsha'lt meshing with the worin wheel, and an overhanging lip extendingalong the top of the uppermost panel and playing in the recess in thetraine to engage over and bear upon the upturned rib.

2. In a window ventilator, the combination ot' a frame, a series ofpanels pivotally mounted in the frame, means connected with one of thepanels for setting the same, connecting bars pivotally connected to thepanels whereby to effect synchronous moveinentot the panels, saidconnecting bars having arcuate slots, studs on the frame, guard plateshaving arcuate slots engaging said studs, and studs on the guard plateslittin'g inthe slots in the connecting bars.

3. In a window ventilator, the combination of a frame, a plurality ofholders pivoted at their upper ends in the frame, panels having theirend edges engaged in said hold ers, connections between the holders,means acting on one panel to set the saine, and a tie bar disposed belowthe lower edge of one panel and having its ends secured in the holderscarrying said panel.

4. In a window ventilator, the combination of a frame, holders havingopen tops, panels tltted at their ends in the holders with their topVedges below the upper ends ot' the holders, and pivots extendingthrough upper ends of the holders into the frame, and bearing on theupper edges of the respcetive panels, whereby to pivotally attach theholders to the trame and ret-ain the panels in the holders.

5. In a window ventilator, the combination of a frame, holders havingopen tops, panels fitted at their ends in the holders with their topedges below the upper ends of the holders, and pivots extending throughupper ends ot' the holders into the frame and bearing on the upper edgesof the respective panels whereby to pivotally attach the hold ers to theframe and retain the panels in the holders, the pivots of one panelextending entirely across the panel and heilig pinned to the inner websof the holders and said `webs being enlarged to reenforce the fastening.

Signed at Waverly, New York, this tifteenth day of March 1920.

VICTOR M. ALLEN.

